Corn-mill.



R. C. MEADOWS.

CORN MILL.

APPLIUATION FILED JULY 2, 1912.

LlSSQS., Patented. Mar. so, 1915.

2 SHEETS-SHEET 1.

SWW/Mofa Re CMadow.

NORRIS PETERS C17.,PHCrrlJ-LITMOA4 WASHINGTON. Dv C.

R. C. MEADOWS.

CORN MILL.

APPLICATION FILED JULY 2, 1912.

Patented Mar. 30, 1915.

z SHEETS-SHEET z,

THE NORRIS PETERS 60 PHD70-LITHO.. WASHINGTON, u,

ROBERT C. MEADOWS', OF POORS KNOB, NORTH CAROLINA.

CORN-MILL.

Specification of Letters Patent.

Patented Mar. 30, 1915.

Application led J'uly 2, 1912. Serial N o. 707,268.

To all whom t may concern.'

Be it known that I, ROBERT C. MEADOWS,

a citizen of the United States, residing atl Poors Knob, in the county of Wilkes and State of North Carolina, have invented new and useful improvements in Corn-Mills, of

which the following is a specification.

This invention relates to mills for grinding corn, and one object of the invention is to provide a simple and improved casing for containing the bed stone and the runner stone, and means for conveniently adjusting the runner stone to gage the neness of the product.

lA further object of the invention is to provide a simple and efficient winnowing device in connection with the mill for the purpose of removing dust and foreign matter from the corn previous to grinding.

A further object of the invention is to improve the construction and manner of operation of the sieve for sifting theproduct.

`With these and other ends in view which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully de-v scribed and particularly pointed out in the claim.

In the accompanying drawings has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein eX- hibited, but that changes, alterations and modifications within the scope of the claim may be resorted to when desired.

In the drawings,-Figure 1 is a front'elevation of a mill constructed in accordance with' the invention. Fig. 2 is a top plan view of the same. y Fig. 3 is a vertical sectional view taken on the line 3-3 in Fig. 2. Fig. 4 is a transverse sectional view taken on the line 4 4 in Fig. 1. Fig. 5 is a sectional detail view taken on the line 5*5 in Fig. 1. Fig. 6 is a longitudinal sectional view through the sieve taken on the line 6 6 in Fig. 2.

Corresponding parts in the several iigures are denoted by like characters of reference.

The casing of the improved mill is composed of two cylindrical members 1 and 2, open at their abutting ends and provided with heads 3, 4, said heads being provided with bearings wherein the shaft 5 is supported for rotation, said shaft being provided at one end with a driving pulley or band wheel 6 adapted tov receive motion from any suitable source of power by means of an ordinary belt or band which, owing to the location of the band wheel at one end of the shaft, and outside the bearings of the latter, may be conveniently applied and detached without unlacing. The shaft 5 has an additional bearing upon a bracket 7 which, as well as the casing members 1, 2, Y

is mounted upon a base 8. The casing members 1, 2 are provided with feet 9 adapted to be bolted upon the base, and said casing members are also provided with lugs or ears 10 for the passage of connecting bolts 11, whereby the said casing members may be tightly connected together. The casing members are constructed of integral portions combining to form a discharge spout 12.

The runner stone 13 and the bed stone 14 are arranged within the casing members 1 and 2, respectively, the runner stone being mounted on the shaft 5 for rotation therewith, and the bed stone being provided with an eye 15. That portion of the shaft 5 which extends through the eye 15 of the bed stone is provided with a screw 16. v The hopper 17, which is suitably supported by means of braces 18, contains a sieve or screen 19, whereby the material that is to be ground is subjected to a preliminary screening for the purpose of eX- cluding coarse impurities.

Suitably supported for vibration beneath the hopper 17 by means of springs 20, or in any convenient manner, is a feed chute 21 which discharges into a spout 22 communi'- cating with a casing 23 which surrounds a portion of the shaft 5 and communicates with the eye of the bed stone through the head 4 of the casing member 2. The feed screw 16 'may extend within the casing 23 beneath the spout 22 of the latter.

The casing 23 is connected by a duct 24 with the casing 25 of a fan or blower, the shaft of which, 26, carries a pulley 27 connected by a band 28 with a pulley 29 on the shaft 5 from which the fan or blower is driven. The casing 23 is provided with an upwardly ranging discharge spout 30 disposed opposite to the duct 24, said discharge spout being placed at such an angle that dust and impurities will be carried Voli' therethrough lby theair current induced by the blower, While the grain Will settle by gravity in the casing 23from-Whichit is j. carried by the eed'screw t0 the eye of thev bed stone.

The boX or bearing member 3l Which member l and which supports oneend .of

the shaft 5 is` provided withA aWset sc're'vv32 to take up end thrust ofthe shaft and. to

The spring supported chute 21 is'equipped Withan 'arm 33 which is engaged by the ,in--l @lined or cam-shapediacelv34 of' the .band Wheel or pulley 29 on the shaftu whichv serves to.' ytransmit motion v'to the blower.

Saidfpulley has a hub extension 35 provided. With'an inclined or' cam-shaped face 36 eng-v.

gagi'ngthe shoe or'vvear plate 37 on a cross ,i bar 38 vWhich'- extends acrossl the. shaft `5, substantiallyat fright angles Qtheretd, one Y end of said crossbar being supported pivotv 39 designates Y on upright springs 40 insuch va ,position ,as

spoutlQf 'Suitably connected with theirear.,

side'of the sieve39 is one vend of a fiatspringe 45, the other'. end of which is hingedly. ponynected atfLG Awith the free end` ofthecross bar 38. A'suitably-ar'ranged sprngitefservesQ to force thevcrossA barl`38 in theldirectionV oifl the cani face36. Withfvvhich it isheld in@ contact and the rotation of Which'litwivill receive `the vibratory motion 4}Whichis im; parted,l tothe sieve 39. The springAL Will alsov through 'the mediumty Kof, the lcro-Ssgbar l; 38 exert a longitudinal stress uponftheishaft'; 5, whereby saidshaftis movedginitheidirection'of andfheld incontactvvithv the adjusting screvv 32, thereby-.holding theiace of bed stone and the runner stone'.apartand`l preventing `Ithem from being accidentally, movedinto 4contact With eachothe`r..l.,:l'Ihe sieveisl provided. below the spout y12 with` u; detachable fpan'elftl Which may be-removed Whenfit. shall not be desired to sift theprodf. uct,`.thu s enablinglthe product .todrop di- 'i rectly through the screen rameinto, arece'pv.- l v VCopiesrij: this ,patient may 'ob'cail fied for is.V

associated Withthefhead 3J of the casing the sieve yvvhioh; is suppe.rt/.ed,lv fi-,isspe Y tacle placed underneath, /vvithout making itv necessary to rst remove the sieve.

It vvill zbe .seen.from...the...foregoing vdescription that I have provided a corn mill of exceedingly simple construction, whereby the corn may be groundl to a desired degree offineness, coarse, as Well as fine, impurities 'Y .beingpreyiously removed, and the product being' sifted as'it leaves the mill, all at a single operation. A that theconstructionis suchthat the entire.

It. .will also -be observed vpressure of the stones While the mill is grindf.

ing is'cOnined vvithin the shelves orca'sing ..7 members. constituting the housing ofi f thel stonesg.,thatisto,say,v the casingrforms aV complete housing withinwhich the, bed; and j 1 runnerg stones are lconfined'. i, The bed. -'stoner if; heldilninovably .Within one end o y the,l cas-1. lng 0r :housing andthe pressure whereby the `runnerlstone is Vforced aingthedirectiouf .oi the-.bed stone ,istaken Yup Within theaspf` ing kor housing, thusfmaking an exceedingly, y durable and Wear-resisting constructionand 'onex lwhereby ordinary accidents.; are avoided, thereby Swing timeand expense-.f Having' hus describedthe invention,- What .1 i is claimed Aas new, is:.- to receivethe meal.. discharged*v through vthe y A A device end and lhaving itsfreeend disposedadjacent said'screen, a shoe mounted upon said} Varm,xa camiixeduponsaid shat.andadapt-g k-. .ed tol bear againstsaid Ashoe,acontractile` '-853 ies spring connectedto thec'rossbar at a point Y adjacent .the free'lend thereosaid spring bei@ Ving operatedgyvhen, Saidamengages 4said' g crossfbar .toinove .the samev lforwardly,V ,and-

a flatzspring. secured atI .one Y,end :to ,said

spring, the opposite'end ofthe latter mentioned yspringbeing hingedlyconnected to',V the free endof ,said crossjbar,.saidjirstVA .mentioned spring effecting the longitudinal. l j t;

v.l.movement of said shaft.; Y. Y v

In testimony-Whereof I afiinmyisignature in presence lcityvoxWitnesses. Y

nonn'r o.' MEADOWS;

momma., Dief: 

